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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 841 · 40 questions
TalentJR

Remember (Digit, digit, zeros): black 0 · brown 1 · red 2 · orange 3 · yellow 4 · green 5 · blue 6 · violet 7 · grey 8 · white 9. Band 1 and band 2 = two digits; band 3 = number of zeros to add. Examples: brown-black-red = 1000 Ω; yellow-violet-brown = 470 Ω; red-red-red = 2200 Ω = 2.2 kΩ.

NameDateTime takenScore ___ / 40
  1. 1.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 25 % (d) 5 %
  2. 2.🌈 In the resistor colour code, which number does red stand for?
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 60 Ω resistor? (a) violet-black-black (b) blue-black-black (c) blue-black-brown (d) violet-blue-black
  4. 4.🌈 A resistor has the colour bands blue, green, brown. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands white, green, brown. What is its value (in ohms)?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 21 Ω resistor? (a) red-brown-brown (b) brown-red-black (c) orange-brown-black (d) red-brown-black
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 17 Ω resistor? (a) brown-violet-brown (b) brown-violet-black (c) red-violet-black (d) violet-brown-black
  8. 8.🌈 A resistor has the colour bands blue, green, orange. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 In the resistor colour code, which number does blue stand for?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 16 Ω resistor? (a) blue-brown-black (b) red-blue-black (c) brown-blue-brown (d) brown-blue-black
  11. 11.🌈 A resistor has the colour bands blue, black, yellow. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A resistor has the colour bands grey, yellow, red. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands brown, black, brown. What is its value (in ohms)?
  14. 14.🌈 In the resistor colour code, which number does yellow stand for?
  15. 15.🌈 In the resistor colour code, which number does black stand for?
  16. 16.🌈 A resistor has the colour bands grey, orange, red. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands violet, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 12000 Ω resistor? (a) brown-red-orange (b) brown-red-yellow (c) red-brown-orange (d) brown-red-red
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5100 Ω resistor? (a) green-brown-orange (b) green-brown-brown (c) green-brown-red (d) brown-green-red
  20. 20.🌈 A resistor has the colour bands grey, grey, brown. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands green, black, black. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands brown, violet, red. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands violet, blue, black. What is its value (in ohms)?
  24. 24.🌈 Which band is read first on a resistor? (a) the gold band (b) the one nearest an end (c) the widest gap (d) any band
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 930 Ω resistor? (a) orange-white-brown (b) white-orange-brown (c) white-orange-black (d) white-orange-red
  26. 26.🌈 A resistor has the colour bands red, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands white, white, yellow. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3300 Ω resistor? (a) orange-orange-brown (b) orange-orange-red (c) orange-orange-orange (d) orange-yellow-red
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 69000 Ω resistor? (a) blue-white-red (b) blue-white-yellow (c) blue-white-orange (d) white-blue-orange
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 89000 Ω resistor? (a) grey-white-red (b) grey-white-orange (c) white-grey-orange (d) grey-white-yellow
  31. 31.🌈 A resistor has the colour bands green, black, brown. What is its value (in ohms)?
  32. 32.🌈 In the resistor colour code, which number does white stand for?
  33. 33.🌈 A resistor has the colour bands violet, red, red. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands yellow, green, orange. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 In the resistor colour code, which number does brown stand for?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 41 Ω resistor? (a) yellow-brown-black (b) yellow-brown-brown (c) green-brown-black (d) brown-yellow-black
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 32000 Ω resistor? (a) orange-red-yellow (b) red-orange-orange (c) orange-red-orange (d) orange-red-red
  38. 38.🌈 A resistor has the colour bands green, violet, black. What is its value (in ohms)?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 180 Ω resistor? (a) brown-grey-black (b) grey-brown-brown (c) brown-grey-red (d) brown-grey-brown
  40. 40.🌈 A resistor has the colour bands brown, green, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 5 %
  2. 2
  3. blue-black-black
  4. 650
  5. 950
  6. red-brown-black
  7. brown-violet-black
  8. 65
  9. 6
  10. brown-blue-black
  11. 600
  12. 8.4
  13. 100
  14. 4
  15. 0
  16. 8300
  17. 710
  18. brown-red-orange
  19. green-brown-red
  20. 880
  21. 50
  22. 1700
  23. 76
  24. the one nearest an end
  25. white-orange-brown
  26. 270
  27. 990
  28. orange-orange-red
  29. blue-white-orange
  30. grey-white-orange
  31. 500
  32. 9
  33. 7200
  34. 45
  35. 1
  36. yellow-brown-black
  37. orange-red-orange
  38. 57
  39. brown-grey-brown
  40. 15

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